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1.
NONNESTED MULTILEVEL PRECONDITIONING METHODS WITH SIMPLE AND IDENTICAL COARSE MESH CORRECTION SPACES
Li Likang 《高等学校计算数学学报(英文版)》2000,9(1):19-36
1 IntroductionMultilevelmethodshavebecomesomeofthemostpopularmethodsforsolvinglargesystemoflinearequationsresultingfromthefiniteelementdiscretizationofpartialdifferentialequations.ThepioneerworkofmultilevelmethodsistheYserentant’sHierarchicalbasismeth… 相似文献
2.
§1. ForecastabouttheCarMarketDemandandtheQuantityofCarPossessioninOurCountryin2000Inthissection,weshallforecastthecarmarketdemandandthequantityofcarpossessioninourcountryin2000bymeansoftwostatisticsmethods,i.e.tendencyinferenceandregres-sionanalysis.… 相似文献
3.
§1. IntroductionTheSaintVenantproposedthefamoussemi-inversesolutionmethod[1],thatsomeappro-priateassumptionstothedeformationshouldbemadebeforehandtofindthesolution,after-wardscheckingtheassumptionsbeingvalid.Thereafter,thesemi-inversesolutionbecomest… 相似文献
4.
Theequivalencebetweencontinuityandboundednessofthelinearoperatorsonageneralprobabilisticnormedlinearspace(briefly,PNspace)wasdiscussedundersomehypotheses([1],Theorem2.4).Thepurposeofthispaperistodiscusstheequivalenceinthemuchmoregeneralsettingbymeans… 相似文献
5.
§1. IntroductionInthispaper,wewillconcernwithsolvingthesystemsoffuzzylinearequationsAx=bforx,whereAisamatrixoffuzzynumbers;xandbarevectorsoffuzzynumbers.In[2],usingthenewsolutionconcept,sixnewsolutionsaredefined.Thisdiscussionwasrestrictedtosq… 相似文献
6.
Whenapplyingafuzzycontrolmethodoranintelligencecontrolmethodtoaneffectivecontroloveracomplexsystem,itissometimesnecessarytoidentifysystematicstructureandparameters.Mathematically,itisjusttheproblemsofuniversalfunctionalapproximationandfunctionapproxi… 相似文献
7.
§0. IntroductionForaclosed4-manifold,itiswellknownthatanytwodimensionalhomologyclasscanberepresentedbyanembeddedsurface.Afundamentalproblemin4-dimensionaltopologyistofindasurfacewithminimalgenuswhichrepresentsthegivenhomologyclass.Aspecialcaseofthisq… 相似文献
8.
§ 1.Introduction In [1 ] ,twooperatorclassesofD nearsubnormaloperatorsandnearsubnormaloperatorswereintroduced .TheelementarypropertiesofsuchoperatorswereobtainedbyuseoftheM Pgeneralizedinverse.Moreover,anewnecessaryandsufficientconditionforanoperatortobesubn… 相似文献
9.
§1. IntroductionItiswellknownthatthedegreetheoryforak-set-contractoperatorhasmanyapplicationsontheexistenceofthesolutionsofsomeequations(see[1],[2],[3]).However,someopera-torsarenotk-set-contractoperators.Itisanewproblemthatweestablishadegreetheoryfo… 相似文献
10.
§ 1.Introduction In 1 961Carter[1]provedthatinanyfinitesolvablegroupGthereexistsself normalizingnilpotentsubgroups (Cartersubgroups) .TheconceptofCartersubgroupscomesfromtheconceptofCartansubalgebrainLiealgebra ,sothestudyofCartersubgroupsisveryimportantingrou… 相似文献
11.
Thetheoryofharmonicmapsintoacompactnonpositivelycurvedtargetiswell-developed.TheexistenceofsuchaharmonicmappinginanygivenhomotopyclassisestablishedbyEellsandSampson[1]in1964,andlater,in1967,Hartman[2]gaveaproofoftheuniqueness.Thispaperisdevotedtoanapplicationo… 相似文献
12.
ImplicationfiltersderivefromModusPoenesRuleinlogic.Itisveryimportanttostudylatticeimplicationalgebrasandthecorrespondinglattice-valuedlogicsystem.Inordertoin-vestingatelatticeimplicationalgebrasfromtheviewofanalysis,implicationfilterspacehasbeenestab… 相似文献
13.
§1.IntroductionThetheoryofintegrableHamiltoniansystemsofinfinitedimensionshasundergonearapiddevelopmentsincethelate1960’s(seeashortsurveyin[1]andreferencestherein).BoththefiniteandinfinitedimensionalintegrableHamiltoniansystemshavebroadapplicationsinvariou… 相似文献
14.
Chen Shuxing 《数学年刊B辑(英文版)》1996,17(4):445-456
Inthispaperwecontinueourdiscussionin[5].Mainlywewillestablishaprioriestimatesforthelinearizedproblem(G),andthenprovetheexistenceofthesolutiontononlinearproblem.In§5wegivesometechnicalpreparations.Thenthewhole§6isdevotedtotheestablishmentofenergyestimates.I… 相似文献
15.
§1.IntroductionandBackground ThedistributiontheoryoverinfinitedimensionalGaussianspacehasbeendevelopedintwodirections:Givenadenselydefinednon-negativeselfadjointoperatorAintheHilbertspaceL2(R),bythewell-knownisomorphismbetween(L2),theHilbertspaceofsquarei… 相似文献
16.
Itisknowntoallthatthetheoryofthepoint-countablecoversbeoneofthemostimpor-tantsubjectsinGeneralTopology.Thepoint-countablecoverswithvariouscharacterhavebeendiscussedbymanytopologists,suchasLinandTanaka’spaper[1]onpoint-countableK-network.Inthispaper,w… 相似文献
17.
§1. IntroductionTheContinuousInductionofrealnumberisrewrittenasbelowinthispaper(Ⅰ).TheContinuousInduction(A):SupposethatPxisapropositionconcerningarealnumberx.Ifthereissomex0suchthatPxistrueforeveryx<x0,thenPxistrueforeveryrealnumberx.IfPxistruefore… 相似文献
18.
You Yuncheng 《数学年刊B辑(英文版)》1996,17(4):389-402
§1.Introduction SincethediscoverybyKorteweganddeVries(1895)andtheworkofZabuskyandKrustal(1965),therehavebeennumeroussignificantcontributionstotheKortewegdeVries(KdV)equationsandthesolitonsolutions,especiallythemethodofInverseScatteringTransformandthemethodof… 相似文献
19.
§1.IntroductionTheTeichmülerspacesdiscussedinthispaperareinfinitedimensionalTeichmülerspaceswithcomplexstructure.Thisimpliest... 相似文献
20.
Su Jianbing 《数学季刊》1998,(3)
§1. IntroductionIfD1,D2aretwosmoothboundedpseudoconvexdomainsinCn,D1satisfiestheconditionR(see[1]),itiswellknownthatanybiholomorphicmappingf:D1→D2extendssmoothlytotheboundary.Thisresulthasbeengeneralizedtothecasesofproperholomorphicmappings([2]).Inth… 相似文献